Thursday, March 19th, 2009 AT 10:18 PM
CHECK ENGINE ON PO335 TACH ON DASH GOES CRAZY 2500RPM TO 55OORPM I HAVE ALREADY CHANGED CRANK SENSOR. CANT GET TRUCK TO DO RELEARN. ALSO CHECKED TIMING CHAIN FOR SLACK, ITS OKAY. ALSO CHECKED WIRES GOOD GROUND, 10.9 V REF, AND GOOD SIGNAL WIRE.